BECKHOFF KL4404 Bus Terminal

Description

The BECKHOFF KL4404 is a four-channel analog output terminal designed for the Beckhoff Bus Terminal system. It generates industrial control signals in the 0 to 10 V range with a 12-bit resolution, providing precise analog command signals for actuators, drives, and control valves. As part of the modular Bus Terminal series, the KL4404 connects directly to a Bus Coupler or BK-series node via the K-bus, integrating seamlessly into decentralized automation architectures.

This single-ended analog output module processes four independent output channels through standard wiring connections. The unit features short-circuit-proof outputs and reliable electrical isolation between the field-side signal voltage and the K-bus logic, ensuring stable operation within industrial control panels. Configuration is handled entirely through the higher-level controller and fieldbus system without requiring manual address or parameter settings on the device itself.

Features

• Four analog output channels supporting the 0 to 10 V signal range
• 12-bit internal resolution for accurate signal generation
• Single-ended output technology with short-circuit protection
• Direct connection to the K-bus for internal data exchange and power supply
• Configurable process image supporting 4 x 16-bit output data with optional 4 x 8-bit control and status bytes
• Pluggable wiring interface compatible with standard KSxxxx Bus Terminal accessories

Applications

• Controlling proportional valves and actuators in factory automation
• Providing setpoint values for variable frequency drives and motor controllers
• Driving analog panel meters and indicator displays
• Interfacing with data acquisition and process control systems requiring analog output signals

Technical Specifications

General

Electrical

Mechanical and Environmental

Approvals and Certifications

Installation Guidelines

Ensure the control cabinet and all associated power and field supplies are completely de-energized before beginning installation or removal work. Verify that the exact model KL4404 matches your system design and terminal layout requirements. Mount the Bus Terminal onto the DIN rail by snapping it into place next to the Bus Coupler or an existing terminal, ensuring the K-bus connections interlock correctly. Connect field wiring to the appropriate terminal points using compatible pluggable wiring connectors. Observe correct polarity for all analog signal lines. Verify that power contacts and field-side supply voltages are correctly wired and within specified operational limits. Power on the system and check diagnostic indicators to confirm proper communication over the K-bus and correct operational status of all four analog output channels.